The paper provides a quantitative analysis of the armed confrontation that took place in Greece between the Communist Party and the Centre-Right Government during 1946-1949. Using monthly data for battle casualties a dynamic Lotka-Volterra framework is estimated, pointing to the existence of a...

This paper analyzes peer effects among university scientists. Specifically, it investigates whether the number of peers and their average quality affects the productivity of researchers in physics, chemistry, and mathematics. The usual endogeneity problems related to estimating peer effects are...

This paper analyses whether the German National Socialists used economic policies to reward their voters after their rise to power in 1933. Using data on public employment in the armed forces, public administrations and related professions from the German occupational censuses in 1925, 1933 and...

The paper provides a quantitative analysis of the armed confrontation that took place in Greece between the Communist Party and the Centre-Right Government during 1946-1949. Using monthly data for battle casualties a dynamic Lotka-Volterra framework is estimated, pointing to the existence of a...

I analyze a dataset of news from the New York Times, from 1946 to 1997. Controlling for the incumbent President's activity across issues, I find that during the presidential campaign the New York Times gives more emphasis to topics that are owned by the Democratic party (civil rights, health...

Sampling poses an interesting problem in markets with experience goods. Free samples reveal product quality and help consumers to make informed purchase decisions (promotional effect). However, sampling may also induce consumers to substitute purchases with free consumption (displacement...

We study a contracting model with unforeseen contingencies in which the court is an active player. Ex-ante, the contracting parties cannot include the risky unforeseen contingencies in the contract they draw up. Ex-post the court observes whether an unforeseen contingency occurred, and decides...

A fundamental issue for economists is what determines civil conflict. One unsettled question is the relative importance of political freedoms versus economic development. This paper takes a new approach to provide an answer by using micro-data based on surveys of revolutionary preferences of...

This paper develops a simple model to show how social insurance affects the desire to revolt against property rights. It then tests for the effect of social insurance on revolt by introducing a panel data set derived from surveys across 200,000 randomly sampled individuals from the 1970s to the...